Home / 113,439.20-170,223.60-43,368.80

Finding the Fourth Proportional to 113,439.20, 170,223.60 and 43,368.80

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Solution

The fourth proportional to 113,439.20, 170,223.60 and 43,368.80 is: 65,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,439.20 : 170,223.60 = 43,368.80 : x
  2. Step 2: Convert to fraction form
    113,439.20/170,223.60 = 43,368.80/x
  3. Step 3: Cross multiply
    113,439.20x = 170,223.60 × 43,368.80
  4. Step 4: Simplify right side
    113,439.20x = 7,382,393,263.68
  5. Step 5: Solve for x
    x = 7,382,393,263.68/113,439.20
  6. Step 6: Final answer
    x = 65,077.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.